I have the same lift and front track bar on my 4-door. I love it I have not added the additional track bars yet and don't plan on it any time soon. I also have the Teraflex shocks and they're great as well. The track bar is a beast

As far as driveshafts go, I'm definitely replacing the front...just have to save up. I'm on my second warranty replaced front DS and have already torn the boot on it...it will tear every time you go wheeling and do any descent flexing. I guess I should mention that I've got the automatic and the shaft boot catches on the oil pan edge under the tranny. From what I've heard, the rear shaft should be okay, so I don't plan on doing anything with that one any time soon...that it unless I end up bashing it on a rock or damaging it in some way that warranty won't replace it.

I need to get over to the dealership to have the front DS replaced again and then I'll keep that one for a spare once I get an aftermarket shaft.

Hope that helps. I know some of this stuff is a little different for the 2 door versus the 4 door.